2-decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-pgf-type compounds

ABSTRACT

This invention comprises certain analogs PGE or 11-deoxy-PGE compounds in which the carbonyl at C-9 is replaced by methylene. Also provided in this invention, are novel chemical processes and novel chemical intermediates useful in the preparation of the above prostaglandin analogs. These prostaglandin analogs exhibit prostaglandin-like activity, and are accordingly useful for the same pharmacological purposes as the prostaglandins. Among these purposes are blood pressure lowering, labor induction at term, reproductive-cycle regulation, gastric antisecretory action, and the like.

The present application is a divisional application of Ser. No. 682,848, filed May 4, 1976, now issued as U.S. Pat. No. 4,060,534 on Nov. 29, 1977; which is a continuation-in-part of Ser. No. 651,622 filed Jan. 23, 1976, issued as U.S. Pat. No. 4,021,467 on May 3, 1977; which is a division of Ser. No. 556,768, filed Mar. 10, 1975, issued as U.S. Pat. No. 3,950,363 on Apr. 13, 1976.

The present invention relates to prostaglandin analogs, for which the essential material constituting disclosure therefor is incorporated by reference here from Ser. No. 682,848. 

I claim:
 1. A prostaglandin analog of the formula ##STR1## wherein Y₁ is trans--CH═CH--, --C.tbd.C--, or --CH₂ CH₂ --,wherein M₁ is ##STR2## wherein R₅ is hydrogen or methyl; WHEREIN L₁ is ##STR3## wherein R₃ and R₄ are hydrogen, methyl, or fluoro, being the same or different, with the proviso that one of R₃ and R₄ is fluoro only when the other is hydrogen or fluoro, and Wherein Z₇ is(1) cis--CH═CH--CH₂ --(CH₂)_(g) --CH₂ --, (2) cis--CH═CH--CH₂ --(CH₂)_(g) --CF₂ --, (3) cis--CH₂ --CH═CH--(CH₂)_(g) --CH₂ --, (4) --(ch₂)₃ --(ch₂)_(g) --CH₂ --, (5) --(ch₂)₃ --(ch₂)_(g) --CF₂ --, (6) --ch₂ --o--ch₂ --(ch₂)_(g) --CH₂ --, (7) --c.tbd.c--ch₂ --(ch₂)_(g) --CH₂ --, or (8) --CH₂ --C.tbd.C--(CH₂)_(g) --CH₂ --,wherein G IS ONE, 2, OR 3.Wherein m is one to 5, inclusive.
 2. A prostaglandin analog according to claim 1, wherein Y₁ is --CH₂ CH₂ --.
 3. A prostaglandin analog according to claim 2, wherein Z₇ is cis--CH═CH--CH₂ --(CH₂)_(g) --CF₂ --.
 4. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2,2-difluoro-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 3. 5. A prostaglandin analog according to claim 2, wherein Z₇ is --(CH₂)₃ --(CH₂)_(g) --CF₂ --.
 6. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2,2-difluoro-13,14-dihydro-PGF₁, a prostaglandin analog according to claim
 5. 7. A prostaglandin analog according to claim 2, wherein Z₇ is cis--CH₂ --CH═CH--(CH₂)_(g) --CH₂ --.
 8. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-cis-4,5-didehydro-13,14-dihydro-PGF₁, a prostaglandin analog according to claim
 7. 9. A prostaglandin analog according to claim 2, wherein Z₇ is --CH₂ --O--CH₂ --(CH₂)_(g) --CH₂ --.
 10. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-5-oxa-13,14-dihydro-PGF₁, a prostaglandin analog according to claim
 9. 11. A prostaglandin analog according to claim 2, wherein Z₇ is --C.tbd.C--CH₂ --(CH₂)_(g) --CH₂ --.
 12. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-5,6-didehydro-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 11. 13. A prostaglandin analog according to claim 2, wherein Z₇ is --CH₂ --C.tbd.C--(CH₂)_(g) --CH₂ --.
 14. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-4,4,5,5-tetradehydro-13,14-dihydro-PGF₁, a prostaglandin analog according to claim
 13. 15. A prostaglandin analog according to claim 2, wherein Z₇ is --(CH₂)₃ --(CH₂)_(g) --CH₂ --.
 16. A prostaglandin analog according to claim 15, wherein M₁ is ##STR4##
 17. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-13,14-dihydro-PGF₁, a prostaglandin analog according to claim
 16. 18. A prostaglandin analog according to claim 15, wherein M₁ is ##STR5##
 19. A prostaglandin analog according to claim 18, wherein m is
 3. 20. A prostaglandin analog according to claim 19, wherein g is
 3. 21. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-15-methyl-13,14-dihydro-PGF₁, a prostaglandin analog according to claim
 20. 22. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-13,14-dihydro-PGF.sub.1, a prostaglandin analog according to claim
 20. 23. A prostaglandin analog according to claim 19, wherein g is one.
 24. A prostaglandin analog according to claim 23, wherein at least one of R₃ and R₄ is methyl.
 25. A prostaglandin analog according to claim 24, wherein R₃ and R₄ are both methyl.
 26. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16-dimethyl-13,14-dihydro-PGF₁, a prostaglandin analog according to claim
 25. 27. A prostaglandin analog according to claim 23, wherein at least one of R₃ and R₄ is fluoro.
 28. A prostaglandin analog according to claim 27, wherein R₃ and R₄ are both fluoro.
 29. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16-difluoro-13,14-dihydro-PGF₁, a prostaglandin analog according to claim
 28. 30. A prostaglandin analog according to claim 23, wherein R₃ and R₄ are both hydrogen.
 31. A prostaglandin analog according to claim 30, wherein R₅ is methyl.
 32. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-methyl-13,14-dihydro-PGF₁, a prostaglandin analog according to claim
 31. 33. A prostaglandin analog according to claim 30, wherein R₅ is hydrogen.
 34. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-13,14-dihydro-PGF₁, a prostaglandin analog according to claim
 33. 35. A prostaglandin analog according to claim 2, wherein Z₇ is cis--CH═CH--CH₂ --(CH₂)_(g) --CH₂ --.
 36. A prostaglandin analog according to claim 35, wherein M₁ is ##STR6##
 37. A prostaglandin analog according to claim 36, wherein m is
 3. 38. A prostaglandin analog according to claim 37, wherein g is
 3. 39. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-15-epi-15-methyl-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 38. 40. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-15-epi-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 38. 41. A prostaglandin analog according to claim 37, wherein g is one.
 42. A prostaglandin analog according to claim 41, wherein at least one of R₃ and R₄ is methyl.
 43. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-16,16-dimethyl-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 42. 44. A prostaglandin analog according to claim 41, wherein at least one of R₃ and R₄ is fluoro.
 45. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-16,16-difluoro-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 44. 46. A prostaglandin analog according to claim 41, wherein R₃ and R₄ are both hydrogen.
 47. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-15-methyl-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 46. 48. A prostaglandin analog according to claim 35, wherein M₁ is ##STR7##
 49. A prostaglandin analog according to claim 48, wherein m is
 3. 50. A prostaglandin analog according to claim 49, wherein g is
 3. 51. A prostaglandin analog according to claim 50, wherein at least one of R₃ and R₄ is methyl.
 52. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-16,16-dimethyl-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 51. 53. A prostaglandin analog according to claim 50, wherein at least one of R₃ and R₄ is fluoro.
 54. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-16,16-difluoro-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 53. 55. A prostaglandin analog according to claim 50, wherein R₃ and R₄ are both hydrogen.
 56. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-15-methyl-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 55. 57. A prostaglandin analog according to claim 49, wherein g is one.
 58. A prostaglandin analog according to claim 57, wherein at least one of R₃ and R₄ is methyl.
 59. A prostaglandin analog according to claim 58, wherein R₃ and R₄ are both methyl.
 60. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16-dimethyl-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 59. 61. A prostaglandin analog according to claim 57, wherein at least one of R₃ and R₄ is fluoro.
 62. A prostaglandin analog according to claim 61, wherein R₃ and R₄ are both fluoro.
 63. A prostaglandin analog according to claim 62, wherein R₅ is methyl.
 64. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-methyl-16,16-difluoro-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 63. 65. A prostaglandin analog according to claim 62, wherein R₅ is hydrogen.
 66. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16-difluoro-13,14-dihydro-PGF.sub.2, a prostaglandin analog according to claim
 65. 67. A prostaglandin analog according to claim 57, wherein R₃ and R₄ are both hydrogen.
 68. A prostaglandin analog according to claim 67, wherein R₅ is methyl.
 69. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-methyl-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 68. 70. A prostaglandin analog according to claim 67, wherein R₅ is hydrogen.
 71. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-13,14-dihydro-PGF₂, a prostaglandin analog according to claim
 70. 72. A prostaglandin analog according to claim 1, wherein Y₁ is --C.tbd.C--.
 73. A prostaglandin analog according to claim 72, wherein Z₇ is cis--CH═CH--CH₂ --(CH₂)_(g) --CF₂ --.
 74. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2,2-difluoro-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 73. 75. A prostaglandin analog according to claim 72, wherein Z₇ is --(CH₂)₃ --(CH₂)_(g) --CF₂ --.
 76. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2,2-difluoro-13,14-didehydro-PGF₁, a prostaglandin analog according to claim
 75. 77. A prostaglandin analog according to claim 72, wherein Z₇ is cis--CH₂ --CH═CH--(CH₂)_(g) --CH₂ --.
 78. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-cis-4,5-didehydro-13,14-didehydro-PGF₁, a prostaglandin analog according to claim
 77. 79. A prostaglandin analog according to claim 72, wherein Z₇ is --CH₂ --O--CH₂ --(CH₂)_(g) --CH₂ --.
 80. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-5-oxa-13,14-didehydro-PGF₁, a prostaglandin analog according to claim
 79. 81. A prostaglandin analog according to claim 72, wherein Z₇ is --C.tbd.C--CH₂ --(CH₂)_(g) --CH₂ --.
 82. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-5,6,13,14-tetradehydro-PGF₂, a prostaglandin analog according to claim
 81. 83. A prostaglandin analog according to claim 72, wherein Z₇ is --CH₂ --C.tbd.C--(CH₂)_(g) --CH₂ --.
 84. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-4,4,5,5,13,14-hexadehydro-PGF₁, a prostaglandin analog according to claim
 83. 85. A prostaglandin analog according to claim 72, wherein Z₇ is --(CH₂)₃ --(CH₂)_(g) --CH₂ --.
 86. A prostaglandin analog according to claim 85, wherein M₁ is ##STR8##
 87. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-13,14-didehydro-PGF₁, a prostaglandin analog according to claim
 86. 88. A prostaglandin analog according to claim 85, wherein M₁ is ##STR9##
 89. A prostaglandin analog according to claim 88, wherein m is
 3. 90. A prostaglandin analog according to claim 89, wherein g is
 3. 91. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-15-methyl-13,14-didehydro-PGF₁, a prostaglandin analog according to claim
 90. 92. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-13,14-didehydro-PGF₁, a prostaglandin analog according to claim
 90. 93. A prostaglandin analog according to claim 89, wherein g is one.
 94. A prostaglandin analog according to claim 93, wherein at least one of R₃ and R₄ is methyl.
 95. A prostaglandin analog according to claim 94, wherein R₃ and R₄ are both methyl.
 96. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16-dimethyl-13,14-didehydro-PGF₁, a prostaglandin analog according to claim
 95. 97. A prostaglandin analog according to claim 93, wherein at least one of R₃ and R₄ is fluoro.
 98. A prostaglandin analog according to claim 97, wherein R₃ and R₄ are both fluoro.
 99. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16-difluoro-13,14-didehydro-PGF₁, a prostaglandin analog according to claim
 98. 100. A prostaglandin analog according to claim 93, wherein R₃ and R₄ are both hydrogen.
 101. A prostaglandin analog according to claim 100, wherein R₅ is methyl.
 102. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-methyl-13,14-didehydro-PGF.sub.1, a prostaglandin analog according to claim
 101. 103. A prostaglandin analog according to claim 100, wherein R₅ is hydrogen.
 104. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-13,14-didehydro-PGF₁, a prostaglandin analog according to claim
 103. 105. A prostaglandin analog according to claim 72, wherein Z₇ is cis--CH═CH--CH₂ --(CH₂)_(g) --CH₂ --.
 106. A prostaglandin analog according to claim 105, wherein M₁ is ##STR10##
 107. A prostaglandin analog according to claim 106, wherein m is
 3. 108. A prostaglandin analog according to claim 107, wherein g is
 3. 109. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-15-epi-15-methyl-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 108. 110. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-15-epi-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 108. 111. A prostaglandin analog according to claim 107, wherein g is one.
 112. A prostaglandin analog according to claim 111, wherein at least one of R₃ and R₄ is methyl.
 113. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-16,16-dimethyl-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 112. 114. A prostaglandin analog according to claim 111, wherein at least one of R₃ and R₄ is fluoro.
 115. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-16,16-difluoro-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 114. 116. A prostaglandin analog according to claim 111, wherein R₃ and R₄ are both hydrogen.
 117. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-15-methyl-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 116. 118. A prostaglandin analog according to claim 105, wherein M₁ is ##STR11##
 119. A prostaglandin analog according to claim 118, wherein m is
 3. 120. A prostaglandin analog according to claim 119, wherein g is
 3. 121. A prostaglandin analog according to claim 120, wherein at least one of R₃ and R₄ is methyl.
 122. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-16,16-dimethyl-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 121. 123. A prostaglandin analog according to claim 120, wherein at least one of R₃ and R₄ is methyl.
 124. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-16,16-difluoro-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 123. 125. A prostaglandin analog according to claim 120, wherein R₃ and R₄ are both hydrogen.
 126. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-15-methyl-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 125. 127. A prostaglandin analog according to claim 119, wherein g is one.
 128. A prostaglandin analog according to claim 127, wherein at least one of R₃ and R₄ is methyl.
 129. A prostaglandin analog according to claim 128, wherein R₃ and R₄ are both methyl.
 130. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16-dimethyl-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 129. 131. A prostaglandin analog according to claim 127, wherein at least one of R₃ and R₄ is fluoro.
 132. A prostaglandin analog according to claim 131, wherein R₃ and R₄ are both fluoro.
 133. A prostaglandin analog according to claim 132, wherein R₅ is methyl.
 134. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-methyl-16,16-difluoro-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 133. 135. A prostaglandin analog according to claim 132, wherein R₅ is hydrogen.
 136. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16-difluoro-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 135. 137. A prostaglandin analog according to claim 127, wherein R₃ and R₄ are both hydrogen.
 138. A prostaglandin analog according to claim 137, wherein R₅ is methyl.
 139. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-methyl-13,14-didehydro-PGF.sub.2, a prostaglandin analog according to claim
 138. 140. A prostaglandin analog according to claim 137, wherein R₅ is hydrogen.
 141. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-13,14-didehydro-PGF₂, a prostaglandin analog according to claim
 140. 142. A prostaglandin analog according to claim 1, wherein Y₁ is trans--CH═CH--.
 143. A prostaglandin analog according to claim 142, wherein Z₇ is cis--CH═CH--CH₂ --(CH₂)_(g) --CF₂ --.
 144. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2,2-difluoro-PGF₂, a prostaglandin analog according to claim
 143. 145. A prostaglandin analog according to claim 142, wherein Z₇ is --(CH₂)₃ --(CH₂)_(g) --CF₂ --.
 146. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2,2-difluoro-PGF₁, a prostaglandin analog according to claim
 145. 147. A prostaglandin analog according to claim 142, wherein Z₇ is cis--CH₂ --CH═CH--(CH₂)_(g) --CH₂ --.
 148. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-cis-4,5-didehydro-PGF₁, a prostaglandin analog according to claim
 147. 149. A prostaglandin analog according to claim 142, wherein Z₇ is --CH₂ --O--CH₂ --(CH₂)_(g) --CH₂ --.
 150. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-5-oxa-PGF₁, a prostaglandin analog according to claim
 149. 151. A prostaglandin analog according to claim 142, wherein Z₇ is --C.tbd.C--CH₂ --(CH₂)_(g) --CH₂ --.
 152. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-5,6-didehydro-PGF₂, a prostaglandin analog according to claim
 151. 153. A prostaglandin analog according to claim 142, wherein Z₇ is --CH₂ --C.tbd.C--(CH₂)_(g) --CH₂ --.
 154. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-4,4,5,5-tetradehydro-PGF₁, a prostaglandin analog according to claim
 153. 155. A prostaglandin analog according to claim 142, wherein Z₇ is --(CH₂)₃ --(CH₂)_(g) --CH₂ --.
 156. A prostaglandin analog according to claim 155, wherein M₁ is ##STR12##
 157. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-PGF₁, a prostaglandin analog according to claim
 156. 158. A prostaglandin analog according to claim 155, wherein M₁ is ##STR13##
 159. A prostaglandin analog according to claim 158, wherein m is
 3. 160. A prostaglandin analog according to claim 159, wherein g is
 3. 161. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-15-methyl-PGF₁, a prostaglandin analog according to claim
 160. 162. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-PGF₁, a prostaglandin analog according to claim
 160. 163. A prostaglandin analog according to claim 159, wherein g is one.
 164. A prostaglandin analog according to claim 163, wherein at least one of R₃ and R₄ is methyl.
 165. A prostaglandin analog according to claim 164, wherein R₃ and R₄ are both methyl.
 166. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16-dimethyl-PGF₁, a prostaglandin analog according to claim
 165. 167. A prostaglandin analog according to claim 163, wherein at least one of R₃ and R₄ is fluoro.
 168. A prostaglandin analog according to claim 167, wherein R₃ and R₄ are both fluoro.
 169. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16difluoro-PGF₁, a prostaglandin analog according to claim
 168. 170. A prostaglandin analog according to claim 163, wherein R₃ and R₄ are both hydrogen.
 171. A prostaglandin analog according to claim 170, wherein R₅ is methyl.
 172. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-methyl-PGF₁, a prostaglandin analog according to claim
 171. 173. A prostaglandin analog according to claim 170, wherein R₅ is hydrogen.
 174. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-PGF₁, a prostaglandin analog according to claim
 173. 175. A prostaglandin analog according to claim 142, wherein Z₇ is cis--CH═CH--CH₂ --(CH₂)_(g) --CH₂ --.
 176. A prostaglandin analog according to claim 175, wherein M₁ is ##STR14##
 177. A prostaglandin analog according to claim 176, wherein m is
 3. 178. A prostaglandin analog according to claim 177, wherein g is
 3. 179. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-15-epi-15-methyl-PGF₂, a prostaglandin analog according to claim
 178. 180. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-15-epi-PGF₂, a prostaglandin analog according to claim
 178. 181. A prostaglandin analog according to claim 177, wherein g is one.
 182. A prostaglandin analog according to claim 181, wherein at least one of R₃ and R₄ is methyl.
 183. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-16,16-dimethyl-PGF₂, a prostaglandin analog according to claim
 182. 184. A prostaglandin analog according to claim 181, wherein at least one of R₃ and R₄ is fluoro.
 185. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-16,16-difluoro-PGF₂, a prostaglandin analog according to claim
 184. 186. A prostaglandin analog according to claim 181, wherein R₃ and R₄ are both hydrogen.
 187. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-epi-15-methyl-PGF₂, a prostaglandin analog according to claim
 186. 188. A prostaglandin analog according to claim 175, wherein M₁ is ##STR15##
 189. A prostaglandin analog according to claim 188, wherein m is
 3. 190. A prostaglandin analog according to claim 189, wherein g is
 3. 191. A prostaglandin analog according to claim 190, wherein at least one of R₃ and R₄ is methyl.
 192. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-16,16-dimethyl-PGF₂, a prostaglandin analog according to claim
 191. 193. A prostaglandin analog according to claim 190, wherein at least one of R₃ and R₄ is fluoro.
 194. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-16,16-difluoro-PGF₂, a prostaglandin analog according to claim
 193. 195. A prostaglandin analog according to claim 190, wherein R₃ and R₄ are both hydrogen.
 196. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-2a,2b-dihomo-15-methyl-PGF₂, a prostaglandin analog according to claim
 195. 197. A prostaglandin analog according to claim 189, wherein g is one.
 198. A prostaglandin analog according to claim 197, wherein at least one of R₃ and R₄ is methyl.
 199. A prostaglandin analog according to claim 198, wherein R₃ and R₄ are both methyl.
 200. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16-dimethyl-PGF₂, a prostaglandin analog according to claim
 199. 201. A prostaglandin analog according to claim 197, wherein at least one of R₃ and R₄ is fluoro.
 202. A prostaglandin analog according to claim 201, wherein R₃ and R₄ are both fluoro.
 203. A prostaglandin analog according to claim 202, wherein R₅ is methyl.
 204. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-methyl-16,16-difluoro-PGF.sub.2, a prostaglandin analog according to claim
 203. 205. A prostaglandin analog according to claim 202, wherein R₅ is hydrogen.
 206. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-16,16-difluoro-PGF₂, a prostaglandin analog according to claim
 205. 207. A prostaglandin analog according to claim 197, wherein R₃ and R₄ are both hydrogen.
 208. A prostaglandin analog according to claim 207, wherein R₅ is methyl.
 209. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-15-methyl-PGF₂, a prostaglandin analog according to claim
 208. 210. A prostaglandin analog according to claim 207, wherein R₅ is hydrogen.
 211. 2-Decarboxy-2-hydroxymethyl-9-deoxy-9-methylene-PGF₂, a prostaglandin analog according to claim
 210. 